Production of friction disks, washers, brake linings, and the like



Sept. 9 19% 1,508,094

A. M. FENTON ET AL PRODUCTION OF FRICTION DISKS,- WASHERS, BRAKE LININGS, AND THE LIKE Original Filed Dec. 9, 1921 Patented Sept. 9, 1924.

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ALEXANDER MILLER FENT-ON AND THOMAS HENRY CROWTHER, O'F GLECK HEATO N, I

ENGLAND, ASSIGNORS TO SCANDINA'VIA- BELTING, LIMITED, OF LONDON, ENG- LAND.

PRODUCTION or FRICTION msxs, WASHERS, BRAKE Lmmes, AND THE LIKE.

Original application filed December 9, 1921, Serial No. 521,243. Divided and this application filed May' 9,

1923. Serial No. 637,888;

To all whom it mag concern:

Be it known that we, ALEXANDER MILLER IFENTON, a subject of the King of Great Britain and Ireland, residing at Northcliii'e, Cleckheaton, in the county of York, England, and THOMAS HENRY CRow'rrrER,

a subject of the King of Great Britain and Ireland, residing at Prospect Villas, Gleqkheaton, aforesaid, have invented new and useful Improvements in and in the Production of Friction Disks, VVas'hers, Brake Linings, and the like, of which the following is a specification.

This invention is the subject ofa division of our application, filed on the 9th Decem ber, 1921, Serial Number 521,243, and'relates to improvements in, and inthe produc tion of, segmental linings for use as-frictlonsurfaces in brake-shoes, brake-straps and the like, and in particular to the types of such elements as are used in automobile vehicles; our objects being to enhance the efficiency thereof, to simplify their manu e, facture, to economize material and to facili-' tate their impregnation with a binding and hardening agent. 7 i I We are aware that it had been proposed to make a curved brake or clutch hning whereof'the body is composed of a felted fibrous material arranged in superposed lay- 40 the purpose of hardening it, cutting it into rings of the required width and ultimately.

dividing the rings into segments of the required lengths.

The emplriziyl'ment of a winding of fibrous material in e form of yarn or woven into a textile such as canvas, as above described,

results in a product which has considerably greater strength in a circumferential direction'than when the body is composed of'a felted material.

Appliances adapted for use in carrying our invention into effect are illustrated in Fig. 1 of the accompanying drawings, whilst Fig. 2 is a face view of a ring formed with the aid thereof and cut into segments.

Yarn, tape or canvas, impregnated With a viscous product such as that obtained by boil-' ing phenol and formaldehyde in the presence of a catalytic agent by passing the material through a'bath thereof, is wound upon the drum a furnished with retaining platesa temporarily held in position. The wound mass (2 is then dried, hardcnedby heating, and out into rings-of therequired width. Theringsso formed may then be removed from-the drum andcut1nto segments 6 of the required length for use as friction linings like.

, We claim for use as friction surfaces in brake-shoes, brake-straps and the like, by forming, upon in, brake-shoes, brake-straps and the i a 16 1. The manufacture of segmental linings a bobbin or drum furnished with co-axial retaining plates, a winding. of fibrous material composed of. yarn, impregnate d with a suite able binding agent, drying and hardening the wound mass, cutting the same into rings of the required width'and the latter into 1 segments of the required length' 2. Segmental linings for use as friction 1 surfaces in brake-shoes, brake-straps and the like, co'nsistingof a winding of. fibrous ma-Y terial composed of yarn,-impregnated with a suitable binding and hardening agent, such wound mass being cut into rings of the relatter into segments,

quired width and the of the required length. ALEXANDER THOMAS HENRYCROWTHER.

MILLER FENTON. 

